Add Arduino/Genuino 101 support to SD library

Author: bigdinotech

libraries/SD/src/utility/Sd2PinMap.h

@@ -491,6 +491,21 @@ static inline __attribute__((always_inline))
 }
 #endif  // Sd2PinMap_h
 
+#elif defined (__CPU_ARC__)
+
+#if defined (__ARDUINO_ARC__)
+// Two Wire (aka I2C) ports
+uint8_t const SDA_PIN = 18;
+uint8_t const SCL_PIN = 19;
+
+// SPI port
+uint8_t const SS_PIN = 10;
+uint8_t const MOSI_PIN = 11;
+uint8_t const MISO_PIN = 12;
+uint8_t const SCK_PIN = 13;
+
+#endif	// Arduino ARC
+
 #else
 #error Architecture or board not supported.
 #endif

libraries/SD/src/utility/SdFat.h

@@ -23,7 +23,7 @@
  * \file
  * SdFile and SdVolume classes
  */
-#ifdef __AVR__
+#if defined (__AVR__) || defined (__CPU_ARC__) 
 #include <avr/pgmspace.h>
 #endif
 #include "Sd2Card.h"